https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 Bug 53947 depends on bug 101956, which changed state.
Bug 101956 Summary: Miss vectorization from v4hi to v4df https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101956 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED